Praxis Works Doon Carbon Chainset

1957943 / 54293751398746

Final Few

Product Details

Praxis Doon Carbon Chainset

The Praxis Doon Carbon Chainset represents the pinnacle of the brand’s in-house C.R.A.F.T. carbon manufacturing. Named after one of Santa Cruz’s most iconic roads, the Doon combines low weight, exceptional stiffness and all-round versatility, making it the ideal choice for riders seeking pro-level performance.

Engineered as the flagship model in Praxis’ road crank lineup, the Doon is built for those who demand the very best in efficiency and responsiveness.

Features

Crank: Full carbon crankset or arm set only
Intended use: Pro/Elite Road
Material: C.R.A.F.T Carbon, Alloy M30-THRU spindle (30mm/30mm)
Weight: 342g (172.5 armset) | 542g (172.5 with 48/32) | 570g (172.5 with 50/34) | 574g (172.5 with 52/36) | 602g (172.5 with 53/39)
Gearing: LevaTime II X-RING, 48/32, 50/34, 52/36
Chainline: 2x = 44.5mm Road (not compatible with Shimano GRX front derailleurs)
Chain: 10–12 speed, KMC/Shimano/Sram
Main bolt: M30 8mm alloy main crank bolt for install/self-extract
Bottom bracket: M30-THRU BB (30/30mm BB required)
Power meter compatibility: Power2Max NG and NG Eco 3-Bolt | SRM 3-Bolt | Garmin Power Pedals | Look Power Pedals | Favero Power Pedals | Velocomp Power Pod

Specifications

Chainring Configuration: 2x
Discipline Compatibility: Road
Spindle Interface: 30mm
Crank [Maker]: Praxis Works
Crank [Model]: Doon Carbon
Family: Doon
Intended Use: Performance
Speed Compatibility: 10-speed, 11-speed, 12-speed
Product code: 1957943 / 54293751398746

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Shipping & Returns

Free UK delivery on orders over £50. Orders are dispatched within 1-2 working days and typically arrive 1-2 working days later.

Return unused items in their original packaging within 30 days of delivery. Return postage is £3.50.

Payment & delivery Returns & exchanges

Q & A

1 question answered

Q
Hi What will I need to install this crank set on my BSA threaded frame eg Bottom bracket, crank bolts & tools required ? Thanks
Asked by Alan (Bolton) — 26 Jul 2026
1. Hi Alan, The Doon runs Praxis's M30-THRU (30mm) spindle, so on a BSA threaded frame you'll need the Praxis M30-THRU BSA bottom bracket, not the plain M30. The main crank bolt is included and takes an 8mm hex key to fit, plus the Praxis M30 bottom-bracket tool for the BB, which is sold separately. If you'd like us to confirm the exact BB and any preload spacers for your frame, get in touch via https://www.sigmasports.com/contact-us. Many thanks
  Matt B14 Oct 2026